Engine.



.A CHARTER,

ENGINE. Y' APPLICATION .":"'(I.1L'I AUG. 7, 1912.

Patented Feb. 2,1915.

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J. A. CHARTER.

BNG-WE. APPLIOATION FILED AUG. '1, 1912.

Patented Feb. 2, 1915.

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ENGINE.

APPLICATION FILED AUG. 7, 1912.

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Patented Fein '21, MM5@ emmene mee einem e, wie. eeen ne meme.

. To all/whom may cof/'Lemmi' f Ee it hewn that JAMES A, mmree, e

' citilen' oil the United States, :resiiiing et Chicago, in the county of Cook mui State of iiinois, have invented ve certain new sindA usen'iinprovement in Enginegy of which` the foliorvingis e speciiicetion. Y

This invention 'relates 'to explosive engines in which the cylinder is provided with eh annuler recess Aet its end beyond the *pis* ton, so that 'e cylindrical valve rotates there in anti through proper yports controls the entrance of gee te and exhaust ofthe profinets of combustion rom'the cylinden in ,the past, greet diliiculty end expense 'hes been experienced in building devices of this 'i class because of the greet trouble in melting founiry .cores which stand up sniiicrentiy :Weil to form the chore mentioned annuler 4vizo.

recess the casting, thereby causing defective casting, which if-useble ei' ell, re# quires c large amount of machining. The

name difficulty has been'present in forming "the Water space between the inner and outer wells vof the cylindei` proper. Another diffi- `culty has been that in prior devices, when the engine was used unequal expansion took place between the inner and, outer wells of the cylinder, dueto the difi'erence in tempeinture, with consequent distortion of the cylinder here emi strein on them-sting, and.

occasional resuiting breakage. In prior conV strnctions of this t 'pe of engine, it iies been Iimpossible to muc xine both the inside emi onteiiie of the cylinder ,wall and thereby provide orits uniform thickness of mete/l and consequent uniform expansion.

The object of this invention is to provide en engine of 'this'type in which the 'inner cylinder Well .is cest in one piece in euch e form that it caribe readily and easily casi and machined inside enti outside, Whiiethe remaining ic'rts Vnecesssny for the complete censtrnction are also very simple emi eneiiy vcest and finished, and all of the parte `een be' easily assembled and taken apart, thereby permitting cheap repairs or replacement of enyfperticular part.

, .ne invention further consists in features" and detztils ivliichwill be -described emi c claimed hereafter,

in the drawings in' which similar nume-rcls indicate the exime 'parte throughout the diiiorent views, Figure lis n Vertical per- ,cyiner engine kevin 4 is e plan detail sectional View case endfineshing with the successive of e muitipie the preferred form of this invention applied thereto, Fig. 2 is e pien vVier." on the line 2*2, of iiig. i. Fig-3 is en enlarged sectional detail View ci' the left hand cylinder shown in Fig. Fig. 6c

of c pair of cylinders showing the entrance and exhaust ports between them. Figs. 5, 6, 7, anni 8 cre tielly sectional detaii View detail views iilustruting mofiiiicetions which can be mafie in the orm of castinos of the various, parte Witheet departing 'rom 'the brood spirit ci this invention.

in the base casting or freine ,i0 is journaled n creek shaft 12 having oppositeiy'` disposed crank pins ii and i6 attached; te 70 connecting rods 18 ccrrying pistone 2G ci the usuel type. Each one of these istons is slicieble vertically in one of the cy indexe 22, Q4, 26, and 28. Each one of these cylinders is provided with an inner tube or shell to 30 having a contracted orneck ction 80a, closed by on integral cap 30h 'rom which extends the lug 39', all ineke one piece, time forming yan interior cylinciermid combustion chamber 66 Without any joints. As the u? 80' per parte of tile shell ere each eucceesivey Smaller than those below it is obvious that it een be very readily east in one piece by ordinary Well known methods; K y

Y The outside surface of the cyiinder Weile 35 I just ,described is machined inside anti out anni .me-cie with two shoulders 32 emi ii cated upon the' outside 'of the cylinder. 0n shoiiicier 32 ieste'the inner Waii of the f enter; cylinder or jacket 38, there being c 9c 4 in the cris, suoli 'for instance es beveled' gears 46,'i1et i8, and gear 519i, the letter in the gears ifi on the xiiierentrelves of the device, which genre interinesh with eecii other when twovor more cylinders' ere need', as vhere illusd tretevi.

193 is bored from the ar teeth to a point on the outside circumgdi'ence of the cylindrical valve, so that oil flowing through this hole drops upon this outside diameter and lubricates it.- In accordance with ordinary practice, the chamber in which the gears 44 Having thus described my invention what y I claim as new and desire to secure by Let ters Patent isl. In a device of the class described,.an engine cylindermade up of a one piece interna! shell having a space within which av piston is adapted to move, andan extension beyond it of smaller diameter and closing its yend forming a combustion chamber within said cylinder, an .external cylinder or casing fitting over the first mentioned cylinder seas to leave an annular space between the two, and a cylindrical valve member rotatable Within said annularspace and adapted to, control the admission and exhaust of gas to and from the combustion chamber, said cylinders also .forming a Water spacebetvveen them for cooling.

2. In a device of the class described, the l combination of a cylinder member having ports, a rotatable valve outside the cylinder member havin a port registering with the Erstmentione ports, the parts also forming a space approximately opposite tHeJ ports lin the cylinder between the Wall of the cylinder and the valve, there being a passageway leading into the cylinder adapted to .admit gas to said space with conse quent balancing of the valve.'

3. In a device of the class described,'in combination with a cylindrical receptacle,

a cylindrical member rotatable therein, av

gear on said cylindrical member adapted to rotate it, an oil chamber inclosing the gear and passageways leading from the'teeth of said gears to the innerl and outer surfaces of said cylindrical member, for the pur` poses set forth.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses. Y.

' i JAMES A. CHARTER. Witnesses: l

DWIGHT B. CHnnvnn,

G. L. Chaco. 

